Updating from Lightroom 5.7 to Lightroom Classic CC on a Mac

I would like to update my existing Lightroom 5.7 libraries to Lightroom Classic CC, while also getting a subscription to Photoshop. I work off of external hard drives on two different computers, often in remote areas without Internet access. I'm a Mac user with the High Sierra OS. Can you advise as to which subscription plan would be best for me? Thank you.

There’s only one with Lightroom Classic, the Photography Plan that includes LR Classic and Photoshop. This also allows you to edit with Lightroom Mobile on any device by creating Collections in Lightroom and adding photos to them. Loving it! $10.

Thanks for the quick response! Is it possible to upgrade directly from Lightroom 5.7 to Lightroom Classic, or do I need to upgrade to Lightroom 6 before making the jump to the subscription-based software?